Adding-machine



' F. WNKS. ADDING MACHINE.

APPLlCATlON FILED AUG-30,1916.

Patented 060.13, 1921.

3 SHEETS-SHEET I.

I van/Z22 VMM.

F. TRINKS. ADDING MACHINE. APPLICATION FILED AUG.30, 1916.

lPatented Dec. 13, 1921.

3 SHEETS-SHEET 9.3 v l l. -Ji. @$667 MdR l F. TRINKS ADDING MACHINE.

APPLICATION FILED AuG.30. 1916.

3 SHEETS-.SHEET 3.

II-I-v Patented 1160.111921.,

i FRANZ TRINKS, vOlli' BRUNSWICK, GERMANY.

ADDING-MACHINE.

Speccation of Letters Patent.`

Patented Dec. 13, 1921.

'.Appneation ined August ao, 191s. serial No. 117,791.'

(GRANTED UNDER THE PROVISIONS F THE A'C'l 0F MARGH 3, 1921, 41 STAT. L., 1313.)

To all lwhom it may concern Be it vknown that I, FRANZ TRINKS, citizen of the Duchy of Brunswick, Empire of Germany, residing at Brunswick,..Germany, have invented certain new and useful Improvements in Adding-Machines, of which thus set up are transmitted to the accumulating mechanism through operation of the main actuating member of the machine. In machines of this character it is usual to provide a printing mechanism in conjunction with the setting-up mechanism and the accumulator, for having the numbers and items set-up, thereafter listed on av continu'- ous sheet or strip of paper, the printing mechanism being-likewise actuated through the main actuating member. In the machine to which the present invention more particularly relates, there is-also provided an indicating mechanism rendelring the numbers and items set-up visible to the operator.

It is the object of the invention to generally improve upon adding machines of this and similar character. A more specific object of the invention is to provide improved means for transmitting a total accumulated in the accumulating mechanism into the printing mechanism to be set-up therein for listing at the conclusion of av computation or at any other time desired. It is a further objectv of the invention to provide means whereby a. total transmitted from the accumulator into the printing mechanism is rendered visible to the operator within the indicating mechanism., A still further object of the invention is vto provide improved means whereby any total which is being set-up `in the indicating mechanism during the transmission of the.

total fromy the accumulator into the printing mechanism, may be restored in the accumulator by returning the indicating wheels to zero.

These and other objects not specifically mentioned are attained by novel constructive and functional features in the mechanism embodying the invention and which Awillvnow be described with reference to the drawings the novel features being specifically set forth in the claims appended.

In the accompanying drawings, there has been illustrated an embodimentot the invention by way of example, it being understood that modications within the scope of said invention may readily suggest themselves to those skilled in the art to which the present invention appertains. Figure 1 is a cross sectional, side view of' an adding 'machina showing one column of keys and the parts cooperating therewith.' Fig. 2 is 'a view similar to Fig. 1, but showing` parts not visible in the latter view. Fig. 3 is a detail View illustrating the'coperation of the slidable Kactuating pins with the operat- In Fig. itis shown a detail view of a portion of the zero restoring shaft for the accumulator.V .'Figs. 5, 6 and '7,' are detail views, seen from the-rear, of the printing type carrier; while Fi 8 is a side view of the parts shown in Fig. f in a rear view.

lReferring to the drawings, 1 designates a key board provided at the front of the machine and containing keys 2 oscillatingly supported on small pivots 3. For each denominational order the illustrated machine -contains a vertical column of keysQ allotted to the numerals 1 to 9 as indicated in Fig. 1. Each key stem 2 is providedat the front with a shoulder 4 bearing against the upper arm of a two-armed lever 5 which is fulcrumed at 6 and engages a slidable pin 8 with its lower extremity (Figs. 1, 8). Corresponding to tlie number of keys, there are provided nine pins 8 which are slidingly mounted in .a sector-shaped frame 8 (Fig. 3), and eachpin 8 is underthe action of a helical spring 7 which Vtends to retain the pin in its inoperative position, shown in Figs. l and.3. To insure a parallel movement each pin 8 is provided with a lateral guide piece 10 tittedinto guides in the frame 8. On depressing any of the keys provided, the associated pin 8 is advanced into opera-tive position in which the same is retained by means of a spring-subjected and sector-shaped latching bar 56 (Figs. 1 and 3) that co-acts with the oblique face 85 of .a laterally projecting` shoulder 86 .on each of said pins 8. When the latching bar 56 'ing teeth in the revoluble setting-up disk.'

pin 8 of the same column of keysthe presimpl viously advanced pin 8 will be permitted to return into its initial position while the pin last advanced is being retained by. the latching bar in operative position. Thus, any error in depressing the wrong key will be rectified by depressing the proper key t ereafter. vTo prevent two adjacent .keys from being" depressed at the same time, each key stem 2 is provided with an. 'extension 9 which swings rearward and blocks the adjacent arm 5.

' The inner ends of the pins 8 are provided with wedge-shaped loperative faces 12 -(see Fig. 3) which when the pin is in its advanced or operative position, project into the path -of movement of teeth 14 mounted in an actuating disk 13. yThe teeth 14 project from the circumference of the'actuating disk 420.

13 and are oscillatingly supported'on pivots 15 suitably secured within the actuating disk 13. Each tooth 14 is enabled to assume 'two extreme positions within an axially extending plane, as is indicated in Fig. 3. To secure each tooth 14 in either o f its extreme positions, there is vprovided a locking pin 17 subjectedto the action of a spring 16. The locking pin terminates in two wedge-shaped end faces adapted to co-act with similar end faces of the associated tooth 14. When an actuating pin 8 is being advanced into operative position, a number of 'the said teeth will strike the operative face 12 of the advanced pin 8 when the actuating disk 13 is revolved y means of the main operating member 18, and willv in' consequence be caused to swing -into the other position, -indicatedinl Fig. 3

. in dotted lines. The 'number of actuating teeth thus rendered operative depends on the positionof the pin 8 advanced bythe associated key 2 and corresponds tothe numeral the Alatter is representing. ADepressing the lowermost key 2 representing the numeral9 results in having the entire set of nine teeth provided within the actuating disk 13, swung into operatie position for engaging a pinion 19 Whieh is in mesh with the toothed wheel 20. l

After having .passed the pinion 19, 'the set.

-' wheels 29 to their initial or zero position.

The supporting shaft 32 is adapted to act .actuatin as a zero restoring shaft and. for that pur .i

pose is provided with radiall pins 31, indicated in Fig. 4.

axially by a.turning""mo`vement of the wing member 32. The shaft 32 is provided with aixed` stop 33 which when the shaft is being revolved, rides along a stationary cani 34 projecislng,v he zero restoring s haft'32 is adapted 'to be displaced provided on the machine wall, thereby caus ing an axiallydirected displacement ofegthe V7 5 shaft 32v against the resistance of' a helicalA spring 36 which is being tensioned. Whilethe shaft 32 is thus axially displaced, ithe radial pins 31 are enabled tofengage wijh studs 35 laterally projecting from each vnumeral disk 29, thereby causingthe disk to partake ofthe revolving movement of the shaft 32 until reaching the initial or zero position. Toward-the conclusion of a full turn of the zero restoring shaft 32, the helical spring 36 actsvt'o axially movethe shaft back into its inoperative position. j

To effectively prevent the accumulating mechanism from accidentally. moving beyond the determined positions, there is provided a latch 37 subject to the action of a spring 57 and having `)a lockinggtooth 38, designed to block the pinion 27 against rotation in thedirectionl-of the accumulating movement. The locking tooth is adapted to 27 by meansl of a cani 39 'mounted ,on the disk 13 toco'perate with an arm 40 of the latch 37 when the actuating d1sk 13 is being revolved. .By means of the cam- 39, the pinion 27 is released during the period :Loov

of the accumulating `operation and can then be enga ed and turned bythe operative teeth 14'. W en the last tooth 14 has passed the pinion 27, the cam 39 ceases to act upon the latch 37 which now follows theipressure of its spring 57 and reengages theg'pinion 27,

thereby preventing the same lfr om moving any further.

' Prior to the conclusion of .themo'vement of the main operating member 18, the voperative teeth 14l strike a 1 stationary wedgeshaped r stop 41 disposed within' the path of the movementof the teeth 14 and adapted to v return them into theirs-inoperative position. The printing mechanism may be of any approved construction. In ,the drawings, I

have shown a printing device which is more specifically describedgand -claimed inmy copending application Serial No. 112,574 and' which I prefer to apply in conjunction with my present invention. f.

Each print ing type carrying wheel;

carries printing types on a, portion of its circumference and gear teeth on another portion of its circumference.- The toothed.\ portion ofthe wheel 26 isfili. mesh with a.

toothed sector 24 which is secured to the corresponding wheel 2O and vhich causes the wheel to partly revolve soas to bring 95 be lifted out of engagement with the pinionthe numeral types running from,0 to 9 into printing position. In order to return to 0, the vwheel will have to either complete the movement to a full revolution or to make a return movement. The latter -is the case in the illustrated example, in which the printing type carriers are advanced by the above mentioned toothed sectors 24 secured on the wheels 20, but are returned by a different device which will be described hereinafter.

The printing type representing the O is provided on a sliding block 42, see Figs. 7 and 8, which can be moved toward the circumference of the wheel 26 or can be caused to recede toward the shaft` 53 supporting the wheel 26. Normally the block 42 occupies the non-printing position, which is indicated in Figs. l and 8 in which no imprint of the zero character will be produced when a sudden pressure is exerted upon the platen 43. However, when a numeral type is set up on any of the wheels 26, which involves that the wheel has been turned a corresponding amount, a lei'er 45 which normally projects into a -notch 44 in the wheel, is depressed consequent upon the rotation of said lwheel, this lever being in operative connection with a bridge piece 46 that transmits the movement of the depressed, lever 45 to the adjacent lever on the right. Byv means of similar bridge pieces all of the juxtaposed levers 45`areinterlinked so that those succeeding each other on the right ofthe one thatsis being depressed are forced, owing to their interconnection, to partake of the downward movement; see Fig. An u wardly extending arm 45 on each of the levers 45 is provided with a terminal pin 45 which engages a groove 42 in the associated sliding block 42 so as to cause the block to slide outward into printing posi tion when the respective lever 45 is being depressed. lVhen one lever 45 is being depressed those on the right areA likewise depressed. The sliding blocks 42 controlled by the extensions 45 of the levers 45 depressed, move vtoward the platen 43 synchronously. Thus, when on any of the type carriers 26 `a numeral type .is moved into printing position this will result in moving all those zero types into operative position which are situatedon the right of theV numeral type in printing position; while the zero types which are situated on the left remain in the non-operative position indicated in Figs. 1 and 8. y

The returnof the type carriers 26 is accomplished through the operation of the main operating member 18 of the machine. For that purpose the shaft 47 carrying the disk 13 is provided with a geared portion 48 which drives the.' interconnected gear wheels 49, 50, 51 and 52 (Fig. 2), immediately on the performance of the printing on the type carrying wheels 26 and imy part-ing to the latter the revolving move-'C` ment whereby the same are returned to zeroY position. p

lVhen it is desired to print a -total'cntained in the accumulator, a total transmitting mechanism is set into operation which will now be described.

Above the gear wheel 20 there is provided an oscillatory frame 63 (Fig. 1) supported on pivots 64 on the machine casing. The frame 63 carries a transverse shaft 62 supporting for each denominational order a large gear wheel 21 engaging with the gear wheel 20, and in mesh with the first named wheel a pinion 23 with an indicating disk 23 lixed thereto, on another transverse shaft 22.' The indicating disk23 is furnished with the numeral characters 0 to 9 but running in an opposite direction to the equivalent numeralcharacters of the accumulator disks 29 above referred Through an observation aperture 23 the characters of the numeral disk 23 becolne visible to the operator.

At the side of and in mesh with, the accumulator pinion 61 there is provided a pair of interengaging pinions 60, 59, (Fig. l) with which the gear wheel 21 is designed to engage when for that purpose the frame 63 is swung toward the pinion 59. Means are provided for locking the said frame 63 in both of its extreme positions comprisingl a slidably mounted locking pin 66 (Fig. 2} which is under the action of a helical spring 65 and is designed to engage slots 68 provided .in a lateral extension 71 of the frame 63. `VFor lifting the locking pin 66 out of thg/sklpts 68 there is provided a handle 67 fulcriumed at 64 and having a lateral arm 70 prvidedwith cam faces 73, 7 3, adapted to engage a laterally projecting stud 69 on the locking pin 66 when the-handle 6T is being moved by the operator. On advancing the handle 6T in the direction indicated by the arrow inFaig. 2` the front cam face 73 lifts the loc nio` pirL 66 out of engagement with the respeg/iifveslot 68 until the handle arm strikes the stop 72 provided on another extension of the frame 63, whereupon the frame 63 is caused to move simultaneously with the said handle 67, until the extreme forward position of the frame 63 is reached whereupon the locking pin is allowed to engage the "rearwardly positioned slot 68,thus

lll

locking the said frame 63 in its forward position. When the handle 67 is being returned, the'rearwardly positioned cam face 73 lifts the locking pin 66 in the initial part of the movement 'of the handle 67, until the latter fstrikes the' rearwardly positioned stop 72 whereupon the frame 63 is caused to v partake of the return movement.

'Since the accumulating mechanism is normally checked against movement by means of the latch- 37, as hereinbefore described,

means are provided for rendering said lat-ch l 37 inoperative when the accumulator is to be restored to zero through the action of the wing member 32'; Fig. 4. These means are combined with the oscillatory frame 63, and set intooperation simultaneously with the swinging of theframe 63. Rigidly connected with the frame 63 is a thrust bar 87 adapted toact upon an extension 88, of the latch 37. When the frame 63 is-beingvswung toward the front by means of the handle 67,

the thrust bar 87 depresses the extension88 and thereby disengages the latch tooth 38 from the pinion 27. On the return of the. frame 63, the latch 37 is automatically allowed to rengage the pinion 27.

When the gear wheel 21 is swung in mesh with the pinion 59, the total contained in the accumulating mechanism is extinguished by a rotation of the wing member 32 on the4 shaft 32; see Fig. 4. This movement of rotation produces a setting-up of the total on the printing type carriers 26 through the agency of the gear wheels 61, 60, 59, 21, 20,

24. -If then the main Operating member 18 of the machine is advanced-withoutan actuation of any of the numeral keys, the sum previously totalized in the accumulating mechanism will be caused thereby to be printed on the listing strip 58.' It is one of the features 'of the present invention that the total contained in the accumulator is being setup on the indicating disks 23 at the same time the total is extinguished by an operation of the zero restoring device of the accumulator. The total is visible through theobservation apertures 23" during the largest part of the total printing operation, in fact as long as the printing mechanism is not being restored to zero. Through the return movement ofy the type carrying wheels 26 the toothed 4s ector 24 and the gear wheels 20 and 21 are caused to partake'of the return movement.

which is thus transmitted. to the pinions 2 3 of the indicating mechanism whichis thereby simultaneously restored to zero.V Hence, no special zero vrestoring device isv required for the indicating disks 23'..` If it. isdesired to restore'the `printed total in the accumulator, the frame 63 is left in its forward position with the wheel 21 in mesh with the pinion 59 when the'printing device is being returned to zero; then, the total previously printed will be retransmitted into the accumulator while the indicating disks 23 are returned to zero position.

Although I prefer to have the gear Wheel 21 continually in mesh with the gear wheel 20, this is not a requisite. The wheels 21 may be mounted to enable them to be displacedin axial direction after-each trans-` mission of a total from-the accumulator to the printing device.

To produce the actual printing of the types moved into printing position, whether the same represent items or'totals, there is provided a-n inking ribbon 74 which may be mounted, and moved past the printing position, in any well known manner. The listing strip 58 is mounted upon a roll 75 from which the same is drawn' oif and led past the printing position between pairs of' guide rollers 76, 77, and 78, '79. vThe v platen 43 is carriedat the end of pivoted supports 8O and held out of contact with the .ribbon 74 by a spring 80', see Fig; 2, while a lateral extension 80 connects the sus: penders 80 to a controlling lever 82 which is fulcrumed' at 82 and projects into the path of movement of a cam disk 81 secured upon the shaft 58. cam disk 81 causes the platen 43 t'o strike against the types in printing position. with the coloring .ribbon 74 between platen and When revolving, the

printing types; the item or total in printing position will thus b printeduponthe i listing sheet 58. At the conclusion of the ,for said accumulating pinions, a printing mechanism, a .total transmitting device 'between 4said accumulating pinions and said printing mechanism and adapted to operatively connect-anddisconnect said accumulating pinions with saidprinting mechanism, whereby a' total contained in the accumulator may be transmitted into the printing mechanism on actuation of said zero restoring device, and an indicating disk for each denominational order .in operative connection with said total transmitting device and havin -its indicating numerals arranged in an or er opposite to that of the accumulat-I .ing pinions so that on transmission of any total by restoring said accumulating pinions to zero the total transmitted is being set up on said indicating disks.

2. In a machine of the characterdescribed.

` arcaica the combination ci an' accumulator, a zero restoring device for said accumulator, a. printing mechanism, a total transmitting device between said accumulator and said printing mechanism and adapted to operio printing mechanism by restoring said ac-.'

cumulator to zero, a pin for locking said total transmitting device both in its oper# ative position and in its inoperative position, and a handle connected to shift, said transmitting device from one of such positions to the other and provided with a pair of cams alternately engageable' with said pin to lift the same out of locking position.

3. In a machine of the character described,

2o the combination of an accumulating pinion for each denominational order, a Zero restoringidevice for said accumulating pinions,

a printing mechanism, a total transmitting device between said accumulating pinions z and said printing mechanism and adapted to operatively connect and disconnect said accumulating pinions with said vprinting mechanism, whereby a total contained in the accumulating pinions may be transmitted. to so the printing mechanism on actuation of said zero restoring device, means for locking said total transmitting device in its operative and inoperative position, and an indicating vdislr for each denominational order oper- .as -ative connection with 'said total transmitting device andv havin@ its indicating numerals arranged in an or er opposite to that of the accumulating pinions, so that on ltransmission of any total from said accumulatingA a@ pinions into said printing mechanism by restoring said pinions to zero the transmitted total is being set up on said indicating disks.

' '4. ln a machine ci the character described, the combination of an' accumulating pinion for each denominational order, a zero restoring device for said accumulating pinions, a printing mechanism, yan oscillatory frame, motion transmitting members on said frame for each denominational order and in operative connection with said printing mecha'- nism', means for locking said oscillatory frame in either of its two positions, an oscillatory member adapted to render said locking means inoperative during the initial part of its oscillatory movement and to shift said oscillatory frame after having rendered said Alocking means inoperative, the shifting of said frame causing said motion transmitting members to operatively connect said accumulating pinions with said printing mechanism whereby on actuation of said Zero restoring device any total contained in said accumulating pinions may be transmitted into said printing mechanism, and an indicating disk carried on said frame, in operative connection with each of said motion transmitting members, having its numerals arranged in `an order opposite to that ofv said accumulating pinions so that on transmission oiijany ltotal from said accumulating pinions into said printing mechanism by actuation of said zero restoring device the total transmitted is rendered visible on said indicating' disks and may be restored in the accumulat- 'mg pinions through return of said disks to zero. Y

ln test'mony whereof I have hereunto set my hand in witnesses.

FRANZ rniiurs. Witnessesi glnmns Ficirrnnn, Harmon Fiircin.

presence' of two subscribing- 

